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Re: [AVR-Chat] PWM

2006-01-09 by Dave Hylands

Hi Micah,

> If you have 10, 100 ohm resistors in series, and each is 1% tolarance, the
> tolarance of the total group is +- 10%.. That is indeed correct, and if each
> is +-10%, then the total tolerance is +-100%.. odd as it may sound.

I don't agree.

Let's take the example, of 10 x 100 ohm resistors with 1% tolerance.
Let's suppose that they're all 99 ohms (worst case low-side
resistance).

If you add up all 10, you get 990 ohms which is still within 1% of the
nominal 1000 ohms that you should have. I don't see where how you
could possibly get 10% of error.

--
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/

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